Excretory System AKA Urinary System

Job of the Excretory System Collects wastes produced by cells Removes wastes from the body

Organs on the Excretory System Kidneys Ureters Bladder Urethra

Filtering out wastes Waste and needed materials are filtered out of the blood Needed materials return to the blood Waste is eliminated from the body

Urine formation Urine forms from the filtered material in the kidney The material that is filtered out and not recycled back to the body (glucose, water, etc) will collect in tubes in the kidney then are sent out of the body

Excretion and Homeostasis Excretion maintains homeostasis by keeping the body’s internal environment stable and free of harmful levels of chemicals. Organs responsible for excretion and homeostasis are kidneys, lungs, skin and liver